Plasmonic nanostructures with a negative Poisson ratio are demonstrated, having the unusual mechanical property of auxetics to expand laterally when being stretched. Using nanomembrane technology, auxetics are shrunk by orders of magnitude, giving simultaneous access to optical properties of plasmonic metamaterials, as well as auxetic mechanical properties on the nanoscale.

Rapid controlled self-assembly makes DNA ideal for building nanostructures. A problem using hybridized intermediates in hierarchic assembly is their thermodynamic lability. We demonstrate a click-fixation technology by which robust hexagonal DNA modules can be made. This principle is applicable to a wide variety of DNA nanoconstructs.

Nano-grooves etched through top p-GaN layer were proposed to promote GaN-LED light extraction of small angles. The properties grating with an optimized period 500 nm investigated theoretically and experimentally. efficiency increased by 50% in the ±10° incident angle range was verified finite element modeling rigorous coupled-wave analysis simulations, sufficiently explained transmission diffra...

The paper presents the results of scanning mechanical properties coniferous (common pine Pinus sylvestris) and deciduous (small-leaved lime Tilia cordata common oak Quercus robur) trees wood using naation on crosscut face. Manifold increase in microhardness H Young's modulus E has been observed between early late every annual growth ring. Significant differences intraring radial dependencies ha...

BACKGROUND Product adherence is a pivotal issue in the development of effective vaginal microbicides to reduce sexual transmission of HIV. To date, the six Phase III studies of vaginal gel products have relied primarily on self-reporting of adherence. Accurate and reliable methods for monitoring user adherence to microbicide-releasing vaginal rings have yet to be established. METHODS A silico...

Tetracycline (TC) is a broad spectrum of antibiotic which is used to cure infectious diseases and cancer. It can cause harmful side effects due to its high absorption in all organs. On the other hand graphene is appropriate to carry drug and release it to special target, organ or cell. It may decrease the side effects of the drug dramatically by using low dosage of medicine. Graphene oxide (GO)...

The structure and properties of nano-carbon materials formed in explosives detonation are always a challenge, not only for the designing manufacturing these but also clearly understanding performance explosives. Herein, we study dynamic evolution process condensed-phase carbon involved 2,4,6-Triamino-1,3,5-trinitrobenzene (TATB) using quantum-based molecular dynamics method. Various structures ...